O’Neill Mens Psychotech 3/2mm Chest Zip Steamer is a top of the range surfing wetsuit featuring completely sealed seams, Redzone zipper and the extremely supple and flexible neoprene and jerseys that O’Neill has become so well renowned for. It’s a shame you, the internet shopper, are unable to have a feel of this wettie given how ridiculously soft and stretchy the TB3 rubber is.
O’Neill achieves this stretch in the Psychotech 3/2mm by increasing the gas content within the rubber layer of the wetsuit; it’s this gas content (typically nitrogen) that gives the neoprene its high stretch factor. It’s a less known fact that the trapped gas inside the middle layer actually makes the suit warmer! To complement this flexibility the seams are welded instead of stitched, with stretchy TBX-3 internal taping, which gives increased flexibility compared to traditional stitched seams.